Visible-light optical system for all-view 3D measuring instrument

Abstract

The invention discloses a visible-light optical system for an all-view 3D measuring instrument. The visible-light optical system consists of a low-distortion wide-angle imaging optical lens and a linear array CMOS (complementary metal oxide semiconductor) camera which are fixed together, and the low-distortion wide-angle optical lens clearly images searched visible light images on the focus surface of the linear array CMOS camera. The visible-light optical system solves the problems about wide angle, long focus, high resolution, high precision, telecentric degree and the like, and an available optical system is provided for accurate positioning and angle measurement with the all-view 3D measuring instrument. The optical system enables the angle measuring accuracy of the 3D measuring instrument to reach second level accuracy in a work distance beyond the field depth range of 3 m-100 m in 90-degree view field, and linear deviation is ensured to be consistent for distortion of different view fields, which makes a very high requirement for the optical system.

Description

technical field

[0001] The invention belongs to the technical field of optical imaging, and relates to a visible light optical system used for a full-view three-dimensional measuring instrument. Background technique

[0002] The fully automatic image measuring instrument can perform three-dimensional coordinate measurement conveniently and quickly, meeting the requirements of higher speed, more convenient and more accurate measurement for size detection proposed by the modern manufacturing industry. It is a bottleneck technology to solve the development of the manufacturing industry. The full-view high-precision three-dimensional measuring instrument is a precision angle measurement and positioning system with a large field of view, high resolution, and a large working distance range. Its angle measurement accuracy requires second-level accuracy. As one of the key core components of the system, the optical system mainly undertakes the important task of collecting target info...

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